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test/py: move find_ram_base() into u_boot_utils

Browse source 
find_ram_base() is a shared utility function, not a core part of the
U-Boot console interaction.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Stephen Warren 2016-01-21 16:05:30 -07:00 • committed by Simon Glass
parent f5d196d03e
commit 0526610334
3 changed files with 41 additions and 39 deletions
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37
test/py/u_boot_console_base.py
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@ -86,7 +86,6 @@ class ConsoleBase(object):
self.at_prompt = False
self.at_prompt_logevt = None
self.ram_base = None
def close(self):
'''Terminate the connection to the U-Boot console.
@ -378,39 +377,3 @@ class ConsoleBase(object):
'''
return ConsoleDisableCheck(self, check_type)
def find_ram_base(self):
'''Find the running U-Boot's RAM location.
Probe the running U-Boot to determine the address of the first bank
of RAM. This is useful for tests that test reading/writing RAM, or
load/save files that aren't associated with some standard address
typically represented in an environment variable such as
${kernel_addr_r}. The value is cached so that it only needs to be
actively read once.
Args:
None.
Returns:
The address of U-Boot's first RAM bank, as an integer.
'''
if self.config.buildconfig.get('config_cmd_bdi', 'n') != 'y':
pytest.skip('bdinfo command not supported')
if self.ram_base == -1:
pytest.skip('Previously failed to find RAM bank start')
if self.ram_base is not None:
return self.ram_base
with self.log.section('find_ram_base'):
response = self.run_command('bdinfo')
for l in response.split('\n'):
if '-> start' in l:
self.ram_base = int(l.split('=')[1].strip(), 16)
break
if self.ram_base is None:
self.ram_base = -1
raise Exception('Failed to find RAM bank start in `bdinfo`')
return self.ram_base